Home / 9,780.20-14,670.15-3,936.66

Finding the Fourth Proportional to 9,780.20, 14,670.15 and 3,936.66

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Solution

The fourth proportional to 9,780.20, 14,670.15 and 3,936.66 is: 5,904.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.20 : 14,670.15 = 3,936.66 : x
  2. Step 2: Convert to fraction form
    9,780.20/14,670.15 = 3,936.66/x
  3. Step 3: Cross multiply
    9,780.20x = 14,670.15 × 3,936.66
  4. Step 4: Simplify right side
    9,780.20x = 57,751,322.92
  5. Step 5: Solve for x
    x = 57,751,322.92/9,780.20
  6. Step 6: Final answer
    x = 5,904.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.